tamerlan didn't come right in the beginning. so he had a lot of moves, a lot of difficult things -- jenna: if i could, anne, even considering that very dynamic past if that is, indeed, the case, and we showed a little bit of the interview with the teacher, people go through that, and not everyone becomes a terrorist. so what would be the tipping point, if you will, for someone in a state, a mental state where there's ptsd or other side to, again, switch to terrorism? >> the way these groups work, they take a vulnerable individual which he was, and they expose them to a terrorist ideology, and the current militant jihadi ideology has a narrative where they feel sorry for muslims that they claim are oppressed around the world, and they instigate for fighting back against western powers that are supposedly hurting muslims around the world. he uploaded a video of the syrian uprising showing that he felt sympathy for what assad was doing to the syrian people there, which was very similar to what happened to the chechnyan people. a lo